fec_properties

Description

The Fec entity is a leaf of the graphics entities hierarchy. It
represents 2D finite elements plots (see fec,
Sgrayplot).

parent:

This property contains the handle of the parent. The parent of the
fec entity should be of the type "Axes" or
"Compound".

children:

This property contains a vector with the children of
the handle. However, Fec handles currently do not have
any children.

visible:

This field contains the visible property value for
the entity . It should be "on" or "off" .
By default, the plot is visible, the value's property is
"on". If "off" the plot is not drawn on the
screen.

data:

This is a three column matrix [x,y,f], where
x(i) and y(i) are the coordinates of the
i'th node. f(i) is the value associated to
the node i.

triangles:

This is a five column matrix [tn,n1,n2,n3,flag].
tn(j) is the triangle number. n1(j),
n2(j) and n3(j) are the index of the nodes
which constitute the triangle. (flag(j) is not
used).

z_bounds:

This vector of size 2, [zmin,zmax], gives the z values associated
with the first and the last color (of the current colormap). More
exactly if the colormap have nc colors and if we note dz
= (zmax-zmin)/nc, then the part of the triangulation where
zmin + (i-1)dz <= z < zmin + i dz is filled with the
color i). By default the z_bounds property value
is [0,0]. In this case, the zmin and zmax are
autommatically set to the minumum and maximum of the func argument.

outside_color:

This vector of size 2, [cmin, cmax], defines the color used
when nodes values are outside the z_bounds = [zmin,zmax] interval.
When node values are lower than zmin the color with index cmin
is used. When node values are greater than zmax the color with index cmax
is used. By default, the outside_color property value is [0,0].
In this case, cmin and cmax are automatically set to the two bounds of the colormap.
If cmin or cmax are negative, then values outside z_bounds interval are
not displayed, they appear transparent.

color_range:

This vector of size 2, [rmin, rmax], allows to use only a part of the
colormap for display. rmin and rmax stand for
colormap indices. If they are both greater than 1, then the actual colormap used to
display the fec entity is colormap(rmin:rmax) where colormap
is the colormap of the parent figure. By default, the color_range property value is [0,0].
In this case, the whole colormap is used.

line_mode:

If "on", the wireframe enclosing triangles is drawn.
If "off", only the inside of triangles are drawn.

foreground:

This color index specifies the color of the mesh.
If line_mode property is "on",
the wireframe is drawn using this color.

clip_state:

This field contains the clip_state property value for
the fec. It should be :

"off" this means that the fec is not
clipped.

"clipgrf" this means that the fec is clipped
outside the Axes box.

"on" this means that the fec is clipped
outside the rectangle given by property clip_box.

clip_box:

This field is to determinate the clip_box property.
By Default its value should be an empty matrix if clip_state is "off".
Other cases the vector [x,y,w,h] (upper-left point width
height) defines the portions of the fec to display, however
clip_state property value will be changed.

user_data:

This field can be use to store any scilab variable in the fec data
structure, and to retreive it.